A.(-2)-2=4 | B.-2-2=
| C.5x-2=
| D.2(xy)-1=
|
1 |
(-2)2 |
1 |
4 |
1 |
22 |
1 |
4 |
5 |
x2 |
2 |
xy |
3 |
2 |
1 |
2 |
1 |
2 |
9 |
x-2y-3(-2x-3y-1)-2 |
2-1x2y-3 |
2 |
5 |
1 |
2 |
A.(-3)-2=-9 | B.(-3)-1=-
| C.(ab)-2=ab-2 | D.(-
|
A.2x+x=3x2 | B.(-a2)•a3=a6 | C.-2x-2=-
| D.(2m)5=2m5 |
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